Organic molecular sensor with plasmon antenna

M. Yanagisawa, N. Shimamoto, T. Nakanishi, M. Saito, T. Osaka

Research output: Chapter in Book/Report/Conference proceedingConference contribution

7 Citations (Scopus)

Abstract

An organic molecular sensor with a plasmon antenna was developed. A coaxial Ag grating antenna was designed by a finite differential time domain (FDTD) calculation and fabricated by a lift-off process. When pumping light was irradiated onto the sensor, a surface plasmon wave was generated and focused at the center of the antenna; this wave produced a strong electric field. By coating a cystamine self-assembled monolayer (SAM) onto the sensor, strong Raman scattering light produced by a surface-enhanced Raman scattering (SERS) effect was observed at the center of the device. The Raman spectrum showed good agreement with that of cystamine on a Ag surface. The Raman intensity at the center of the device increased significantly and was more than 2,000 times that outside the device. Our optical sensor can detect an unknown single molecule and can be incorporated into other sensors such as gas sensors and biosensors.

Original languageEnglish
Title of host publicationECS Transactions - Chemical Sensors 8
Subtitle of host publicationChemical (Gas, Ion, Bio) Sensors and Analytical Systems
Pages397-409
Number of pages13
Edition11
DOIs
Publication statusPublished - 2008 Dec 1
EventChemical Sensors 8: Chemical (Gas, Ion, Bio) Sensors and Analytical Systems - 214th ECS Meeting - Honolulu, HI, United States
Duration: 2008 Oct 122008 Oct 17

Publication series

NameECS Transactions
Number11
Volume16
ISSN (Print)1938-5862
ISSN (Electronic)1938-6737

Conference

ConferenceChemical Sensors 8: Chemical (Gas, Ion, Bio) Sensors and Analytical Systems - 214th ECS Meeting
CountryUnited States
CityHonolulu, HI
Period08/10/1208/10/17

ASJC Scopus subject areas

  • Engineering(all)

Fingerprint Dive into the research topics of 'Organic molecular sensor with plasmon antenna'. Together they form a unique fingerprint.

  • Cite this

    Yanagisawa, M., Shimamoto, N., Nakanishi, T., Saito, M., & Osaka, T. (2008). Organic molecular sensor with plasmon antenna. In ECS Transactions - Chemical Sensors 8: Chemical (Gas, Ion, Bio) Sensors and Analytical Systems (11 ed., pp. 397-409). (ECS Transactions; Vol. 16, No. 11). https://doi.org/10.1149/1.2981145